﻿/* 
 * Copyright (c) Intel Corporation
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * -- Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * -- Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * -- Neither the name of the Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE INTEL OR ITS
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.IO;
using OpenMetaverse;

namespace InventoryServer.Extensions
{
    public static class SimpleUtils
    {
        public static string ParseNameFromFilename(string filename)
        {
            filename = Path.GetFileName(filename);

            int dot = filename.LastIndexOf('.');
            int firstDash = filename.IndexOf('-');

            if (dot - 37 > 0 && firstDash > 0)
                return filename.Substring(0, firstDash);
            else
                return String.Empty;
        }

        public static UUID ParseUUIDFromFilename(string filename)
        {
            int dot = filename.LastIndexOf('.');
            
            if (dot > 35)
            {
                // Grab the last 36 characters of the filename
                string uuidString = filename.Substring(dot - 36, 36);
                UUID uuid;
                UUID.TryParse(uuidString, out uuid);
                return uuid;
            }
            else
            {
                UUID uuid;
                if (UUID.TryParse(Path.GetFileName(filename), out uuid))
                    return uuid;
                else
                    return UUID.Zero;
            }
        }
    }
}
